Endangered Animals in Ohio: Species, Protections, Penalties, and How to Help

Ohio may not be the first state that comes to mind when you think of endangered wildlife, but the numbers tell a different story. Ohio is home to 125 endangered species, 52 threatened species, 108 species of concern, and 52 species of special interest. From hollow river valleys to ancient oak savannas, the state’s diverse ecosystems support a remarkable range of animals — many of which are quietly disappearing.

Whether you’re a landowner, an outdoor enthusiast, or simply someone who cares about wildlife, understanding the rules around endangered animals in Ohio matters. The laws governing these species operate at both the state and federal level, and the consequences of violating them can be serious. This guide walks you through how species get listed, which animals are currently at risk, what you’re legally prohibited from doing, and how you can help protect Ohio’s most vulnerable wildlife.

Key Insight: Ohio’s endangered species list is reviewed and updated on a regular basis. Always check with the Ohio Department of Natural Resources (ODNR) for the most current listings before making decisions that could affect protected wildlife.

How Endangered Species Are Listed and Protected in Ohio

Ohio uses a dual-track system for listing and protecting endangered species — one track at the state level and one at the federal level. Each operates under different authorities, timelines, and criteria, but they often overlap in practice.

At the state level, two agencies share responsibility. The Ohio Department of Natural Resources Division of Wildlife determines the list of state-listed wildlife species every five years. The Ohio Department of Natural Resources Division of Natural Areas and Preserves determines the list of Ohio endangered and threatened plants every two years. Ohio’s first list of endangered species was adopted in 1974, and the list is reviewed every five years.

Ohio law defines the categories clearly. Under state rules, “endangered” means a native species or subspecies threatened with extirpation from the state — the danger may result from one or more causes, such as habitat loss, pollution, predation, interspecific competition, or disease. Beyond “endangered,” the Division uses five other categories: threatened, species of concern, special interest, extirpated, and extinct, to further define the status of selected wildlife.

At the federal level, the federal Endangered Species Act (ESA) of 1973 provides for the identification, listing, and protection of both threatened and endangered species and their habitats. Before a species is added to the federal threatened and endangered list, it is first placed on a list of candidate species. This placement happens in two ways: the public may petition to list a species, or biologists at the U.S. Fish and Wildlife Service (FWS) may study a species whose population is thought to be declining and decide themselves whether the species qualifies as a candidate.

Once listed under the ESA, the law was designed to prevent the extinction of vulnerable plant and animal species through the development of recovery plans and the protection of critical habitats. ESA administration and enforcement are the responsibility of the U.S. Fish and Wildlife Service and the National Marine Fisheries Service.

Pro Tip: You can petition the U.S. Fish and Wildlife Service to have a species listed under the ESA. Individuals or organizations may initiate the species listing process by submitting a petition to FWS explaining why they believe a particular species should be classified as threatened or endangered. The agency then must determine within 90 days, to the extent practicable, whether there is substantial information indicating that listing the species may be warranted.

Federally Listed vs. State-Listed Endangered Animals in Ohio

Not every endangered animal in Ohio is protected by both state and federal law — and the distinction matters. A species can be state-listed but not federally listed, federally listed but not state-listed, or listed under both. Each scenario carries different legal obligations.

• Federally listed species are protected under the ESA regardless of which state they’re found in. Endangered species are those that FWS or NMFS determines to be in danger of extinction throughout all or a significant portion of their range. Federal protections apply on all land types, including private property.
• State-listed species are protected under Ohio Revised Code Chapter 1531 and related rules. The chief of the division of wildlife, with the approval of the wildlife council, shall adopt and may modify and repeal rules restricting the taking or possession of native wildlife, or any eggs or offspring thereof, that he finds to be threatened with statewide extinction.
• Dual-listed species carry the strongest protections — both state and federal agencies have jurisdiction, and violations can be prosecuted under either or both legal frameworks.

As of a recent count, Ohio had 25 species — 16 endangered species and nine threatened species — listed under the federal Endangered Species Act (ESA). Of these, 19 were animal species and six were plant species. The state list, however, is considerably longer. Ohio’s first official list of endangered wildlife was released in 1974 and contained 71 species. The list is updated every five years and its most recent version includes over 100 species of threatened flora and fauna.

Understanding which list a species falls under is critical if you own land, manage property, or work in development. The Ohio Division of Fish and Wildlife oversees all state-listed endangered fish and wildlife species and their habitats. For federally listed species, the U.S. Fish and Wildlife Service takes the lead. You can explore Ohio’s federally listed species through the U.S. Fish & Wildlife Service’s Ohio listed species database.

If you’re also curious about how neighboring states handle similar challenges, see our guides on endangered animals in West Virginia and endangered animals in Virginia for comparison.

Notable Endangered Animals Found in Ohio

Ohio’s landscape — a patchwork of wetlands, forests, rivers, and grasslands — supports an array of species that are now fighting for survival. Ohio’s wetlands, prairies, forests, and rivers are home to diverse wildlife and rich biodiversity. In these habitats, however, some species are faring better than others. Below are some of the most notable endangered animals currently found in the state.

Timber Rattlesnake

One of only three venomous snakes in Ohio, the Timber Rattlesnake is 3–4 feet long with distinctive dark bands and a telltale rattle at the end of its tail. You can also identify these pit vipers from their triangular-shaped heads. These rattlesnakes are endangered in Ohio primarily due to widespread habitat loss. Previously found across 25 counties, they are now limited to just eight in southern Ohio.

It doesn’t help that rattlesnakes are slow to reproduce. Females begin breeding at six years old and then have a four-year gap before producing more young. There are typically ten hatchlings per litter, but only two or three survive to adulthood. If you want to learn more about Ohio’s venomous wildlife, our article on venomous animals in Ohio covers the full picture.

Allegheny Woodrat

The small Allegheny Woodrat has been endangered in Ohio since 1974, and its population continues to decline. It’s now only found in the southern part of the state, within the Edge of Appalachia Preserve, where it lives in rocky terrain near mountains and cliffs.

The rats are declining for several reasons. They feed on seeds picked out from raccoon poop, but often pick up roundworms too, and the parasite usually kills them. Two more nasty pests, the spongy moth and chestnut blight, have ravaged oak and chestnut trees, both vital food sources for the woodrat.

Lark Sparrow

Lark Sparrows make their nests close to the ground and prefer open grassland. They are endangered in Ohio because their habitats are being destroyed. Conservation efforts are focusing on protecting areas where they can nest, including the Oak Openings region in northwest Ohio, where the Black Swamp Bird Observatory (BSBO) is collecting data on how the birds use their habitats.

Northern Harrier

The Northern Harrier is a low-flying hawk that hunts by coursing over open fields and marshes. The Northern Harrier is on Ohio’s endangered species list, though it can still occasionally be spotted in suitable habitats across the state. Habitat degradation of wetlands and grasslands has driven its decline in Ohio.

Painted Trillium

While not an animal, the Painted Trillium is one of Ohio’s most recognizable endangered plant species and shares habitat with many at-risk wildlife. Today, painted trillium is listed as endangered in Ohio and Michigan due largely to habitat loss caused by excessive logging and other artificial disturbances. At more than 2,000 acres, Morgan Swamp Preserve in Ashtabula County is one of the largest privately protected forested wetlands in Ohio and is perfect habitat for painted trillium and a rich diversity of many other plants and animals.

Important Note: Even small shifts in the distribution and abundance of species caused by issues like climate change and habitat destruction or fragmentation are enough to throw entire ecosystems out of balance, further threatening already vulnerable plants and animals. Protecting one species often means protecting an entire habitat community.

Want to understand the bigger picture of species loss? Our guide on extinct animals shows what happens when conservation efforts fall short — and why preventing extinction matters so much.

What You Cannot Do Around Endangered Animals in Ohio

Ohio law and the federal ESA both impose clear restrictions on what you can and cannot do around endangered animals. Ignorance of these rules is not a legal defense, so it’s worth knowing exactly where the lines are drawn.

When an animal is listed as endangered in Ohio, it is protected under state law, meaning it cannot be hunted or harmed. At the federal level, the prohibitions are broader. In addition to taking a species, delivering, receiving, selling, purchasing, or transporting a threatened or endangered animal species is prohibited without a permit, whether the species is alive or dead.

The term “take” has a wide legal meaning under the ESA. Under federal rules, “harm” is defined as “an act which actually kills or injures fish or wildlife,” including significant habitat modification or degradation which actually kills or injures fish or wildlife by significantly impairing essential behavior patterns, including breeding, spawning, rearing, migrating, feeding, or sheltering. This means that even indirect actions — like removing trees used for nesting — can qualify as a prohibited “take.”

• Prohibited without a permit: Hunting, trapping, capturing, harassing, harming, pursuing, shooting, wounding, or killing any listed animal
• Also prohibited: Buying, selling, transporting, importing, or exporting any listed species or its parts
• Habitat interference: Activities that significantly degrade or destroy critical habitat used by a listed species
• Eggs and offspring: State rules also restrict the taking or possession of native wildlife, or any eggs or offspring thereof, that are threatened with statewide extinction.

Permits are also required for individual or group activities that involve interfering with a species’ habitat. Individuals engaging in activities that might result in the taking of a protected species must abide by a Habitat Conservation Plan (HCP), which includes information on how to mitigate or minimize any impacts to the species or its habitat.

There are limited exceptions. State rules provide for the taking of species threatened with statewide extinction for zoological, educational, and scientific purposes, and for propagation in captivity to preserve the species, under written permits from the chief.

Common Mistake: Many people assume that “not killing” an animal is enough to stay compliant. Under the ESA, simply disturbing a species’ nesting or feeding habitat can constitute an illegal “take” — even on your own property.

Endangered Species on Private Land in Ohio

One of the most misunderstood aspects of endangered species law is how it applies to private landowners. Many people assume that owning land gives them full control over what happens on it. When an endangered species is present, however, that assumption can lead to serious legal trouble.

The presence of an endangered or threatened species on private or public land that overlaps with real estate development may impose certain duties, such as avoiding unauthorized take. Property owners and developers must understand the potential impacts of their activities on listed species, as an unauthorized take of a listed fish or wildlife species may be subject to civil or criminal liability under Section 11 of the ESA.

Farmers and other private entities should be aware of the designation of a species as endangered. In the case of the rusty patched bumble bee, for example, private landowners, including farmers, would not be allowed to “take” or “harm” the bee under ESA provisions if the species is present on their land.

That said, there are voluntary pathways available to landowners who want to work cooperatively with regulators. Revisions to the ESA aim to enhance participation in voluntary conservation programs by promoting native species conservation. They achieve this by clarifying and simplifying permitting processes under Section 10(a) of the ESA, encouraging greater involvement from resource managers and landowners in these voluntary initiatives.

Federal law also draws a distinction between plants and animals on private land. Federal law prohibits individuals from engaging in interstate or foreign commerce with a federally protected plant species. Federal law also prohibits taking a protected plant on federal property. However, individuals may take, move, damage, or destroy a federally protected plant on private land, unless a state law prohibits such activity. Ohio state law does impose additional plant protections, so check both layers before taking any action.

For a broader look at how humans and animals interact in agricultural settings, our farm animals guide provides useful context on responsible animal management.

How to Report an Endangered Animal Sighting in Ohio

Reporting an endangered animal sighting is one of the most direct ways you can contribute to conservation in Ohio. Wildlife managers rely on citizen observations to track population trends, identify new habitats, and detect threats early. Your report could genuinely make a difference.

Who to Contact

The primary agency for wildlife sightings in Ohio is the Ohio Department of Natural Resources (ODNR) Division of Wildlife. You can submit a report through their official website or contact your local wildlife district office directly. For federally listed species, you may also contact the U.S. Fish and Wildlife Service’s Ohio Ecological Services Field Office.

What to Record Before You Report

• Species identification: Take a clear photo if it’s safe to do so without disturbing the animal
• Location: Note the GPS coordinates or a precise description of the location (county, nearest road, landmark)
• Date and time: Record exactly when you made the observation
• Behavior observed: Note what the animal was doing — feeding, nesting, traveling, injured, etc.
• Number of individuals: Record how many animals were present
• Habitat type: Describe the surrounding environment (wetland, forest, field, riverbank)

Pro Tip: Citizen science platforms like iNaturalist allow you to log sightings with photos that can be reviewed and confirmed by expert naturalists. Ohio wildlife managers actively monitor these databases as a supplementary data source.

Reporting an Injured or Dead Animal

If you find a dead or injured endangered animal, do not attempt to handle or move it. Contact the ODNR Division of Wildlife immediately. Moving a protected species without authorization — even to help it — can technically constitute a prohibited “take” under state and federal law. Let trained wildlife officers handle the situation.

The ODNR prepares and maintains surveys and inventories of rare and endangered species of plants and animals and other unique natural features. This information is stored in the Ohio Natural Heritage Database and may be made available to individuals or public agencies for research, educational, environmental, land management, or other similar purposes that are not detrimental to the conservation of a species or feature. Your sighting data contributes directly to this database.

Curious about how animals behave in the wild before you head out to observe them? Our look at animals that sleep a lot and most colorful animals can help you become a sharper observer in the field.

Penalties for Harming or Taking an Endangered Animal in Ohio

The legal consequences for harming or taking an endangered animal in Ohio are significant — and they operate at both the state and federal level. Penalties can range from fines to felony charges, depending on the severity of the violation.

State-Level Penalties

Ohio statutes protect both endangered plants and animals as defined by the State of Ohio as well as those species listed on the federal ESA list. Taking of an endangered or threatened animal species constitutes a misdemeanor, and the person is required upon pleading guilty to the offense, in addition to any fine, term of imprisonment, seizure, and forfeiture imposed, to make restitution for the minimum value of the wild animal illegally held, taken, or possessed.

The stakes escalate quickly for more serious violations. If the aggregate value of the animal(s) taken exceeds $1,000, a person is guilty of a felony. Ohio Revised Code Section 1531.99 further specifies that whoever violates section 1531.25 of the Revised Code is guilty of a misdemeanor of the first degree.

Federal-Level Penalties

Taking a species generally includes causing any harm to a federally protected animal or plant species. Any individual that knowingly takes a listed species can be fined up to $25,000 by the federal government for each violation or instance.

Civil penalties under the ESA are also structured by the nature of the violation. An individual or organization may receive fines or imprisonment, as well as additional penalties, for each violation — meaning each individual of a listed animal species taken without authorization. Even minor, unintentional interactions can carry a financial penalty: as of 2023, the ESA authorizes FWS to assess civil penalties of $1,566 for otherwise violating a provision of the ESA, including by negligently harassing a listed animal or unintentionally taking a listed species.

Important Note: Penalties apply per individual animal taken. If you accidentally disturb a nesting colony of a listed species, each animal affected could represent a separate violation. The financial exposure can escalate rapidly.

It’s also worth noting that enforcement extends beyond the person who directly harms an animal. The attorney general, upon the request of the chief of the division of natural areas and preserves, shall prosecute any person who violates the relevant sections of the Revised Code. This means that project managers, employers, and even contractors can face liability if they direct or enable prohibited activities.

Understanding Ohio’s wildlife laws is part of being a responsible resident and land steward. Whether you encounter a rare species while hiking, manage property where protected animals live, or simply want to report a sighting, the system works best when everyone participates. Ohio’s endangered animals — from the elusive Timber Rattlesnake to the declining Allegheny Woodrat — depend on informed, engaged people to survive.

For more on the animals sharing our world and the threats they face, explore our guides on the biggest animals in the world, animals native to Australia, and the most colorful animals on Earth — each a reminder of how much biodiversity is worth protecting.